%0 Journal Article %T Heterotopic interstitial pregnancy: A case report %A April Riley %A Chase Patterson %A Joy Anderson %J Archive of "Case Reports in Women's Health". %D 2018 %R 10.1016/j.crwh.2018.02.003 %X Before the advent of assisted reproductive technologies, the incidence of heterotopic pregnancy was estimated to be in 1 out of 30,000 pregnancies in the United States. With interstitial pregnancy comprising only 2.4% of ectopic pregnancies, spontaneous heterotopic interstitial pregnancies are exceedingly rare %K Heterotopic interstitial pregnancy %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5869059/